calcite flotation test

Flotation separation of limonite from calcite with sodium ...

flotation tests to recover scheelite from tailings failed due to the dilution of the concentrate by calcite. Hence to adopt the flotation process successfully, it is necessary to depress the calcite selectively which is not achieved easily(2) due to the presence of small amounts of Ca, Mg and Fe salts and the lean grade of the ores to be treated.

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US2419945A US567762A US56776244A US2419945A US 2419945 A US2419945 A US 2419945A US 567762 A US567762 A US 567762A US 56776244 A US56776244 A US 56776244A US 2419945 A US2419945 A US 2419945A Authority US United States Prior art keywords iron flotation silica lime pulp Prior art date 1944-12-11 Legal status (The legal …

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Mar 01, 2019· The effect of calcite on malachite sulfidization flotation was investigated by micro-flotation tests, adsorption, sedimentation and zeta potential test. The micro-flotation results showed that the finer the calcite particles size is, the lower the malachite recovery will be in the sulfidization flotation of malachite at around pH 9.5.

Calcite

In this work, a novel reagent scheme for cassiterite flotation from calcite was evaluated by experiments of a single mineral sample flotation test using lead nitrate as the activator, SHA as the collector and CMC as the depressant. This new reagent scheme was further evaluated in the flotation experiments using mixed binary mineral samples.

EFFECfS OF DISSOLVED MINERAL SPECIES ON THE ELECfRO ...

In mixed minerals flotation the flotation feed sample was a mixture of scheelite and calcite and the flotation procedure was the same as the single mineral flotation test. After flotation the concentrate and tailings were collected dried weighed and assayed for WO 3 contents by chemical titration method. 2.3 Adsorption tests

(PDF) FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING ...

Jul 01, 2005· The other fast surfactant screening method is based on the flotation behavior of powdered calcite in water. In this test protocol, first the calcite power is pre-treated to make the surface oil-wet. The next step is to add the pre-treated powder to a test tube and add a candidate aqueous surfactant formulation; the greater the percentage of the ...

calcite flotation test

A flotation test on mixed binary minerals of calcite (0.33 g) and fluorite (1.67 g) was carried out to evaluate the separation performance of the novel reagent schedule, the …

Chapter 57

calcite have been studied through micro-flotation. The single mineral flotation tests show that LSC can depress calcite, but it has little effect on flotation. Flotation separation of a mixture of smithsonite smithsonite and calcite can be completed to obtain a zinc concentrate grade up to 33.85% Zn with a recovery of 70.06%.

Flotation separation of fluorite from calcite using ...

Cassiterite is the most common and important tin-bearing mineral, and calcite, a primary gangue mineral is generally found in tin deposit. The flotation separation of cassiterite from calcite remains a challenge due to their similar response to traditional reagents. In cassiterite flotation, sodium oleate (NaOL) and sodium silicate (SS) have been widely used as a collector and a …

Selective flotation of scheelite and calcite

The effects of dissolved mineral species of calcite and apatite on the flotation of these minerals has been shown recently in our laboratory to be drastic under certain solution conditions [6]. Flotation of calcite and apatite in mineral supernatants was drastically depressed due to the pre-sence of dissolved species.

(PDF) Apatite Flotation from Brazilite–Apatite–Magnetite ...

Calcite flotation The results obtained for the pH dependence of flotation of calcite using 10 -4 kmol/m 3 potassium oleate at two levels of pH. Interestingly, flotation at the minimum is found to increase from about 25% to 85% with increase in KNO3 from 0 to 3 x 10-2 kmo1/m3.

The effect of molecular assembly between collectors and ...

Calcite Sample lotation Test Results on C leite a.mple Co ttlct. A. gle :eHsurement. wi. th C lcium Fluoride Snmple Flotation Test Results on Calcium Fluoride ample Oontact ngle ea urement wi th Hem­ tite 'mple. 5 11 16 17 20 21 26. Table. VIII. Flotation Test Results on Hematite ~ample. 26 Table. I. able X Contact Angle 1easurement with ...

FLOTATION SEPARATION OF SCHEELITE FROM FLUORITE …

Calcite ore containing 1.6% by weight of silicate mineral (quartz, feldspar, amphibole, pyroxene) was ground in an amount of 0.5 kg together with 0.5 kg of water to a particle size of -250 μm. The ground material was transferred to a 1.5-liter flotation cell.

Fen Jiao's research works | Central South University ...

Calcite flotation The results obtained for the pH dependence of flotation of calcite using 10 -4 kmol/m 3 potassium oleate at two levels of pH. Interestingly, flotation at the minimum is found to increase from about 25% to 85% with increase in KNO3 from 0 to 3 x 10-2 kmo1/m3.

Industrial Minerals

flotation tests to recover scheelite from tailings failed due to the dilution of the concentrate by calcite. Hence to adopt the flotation process successfully, it is necessary to depress the calcite selectively which is not achieved easily(2) due to the presence of small amounts of Ca, Mg and Fe salts and the lean grade of the ores to be treated.

Method of floating calcium carbonate ore and flotation ...

Effect of recirculating process water in calcite flotation Standard test Ca2+ (8 mg/L) Tap water supplied by CETEM. Calcite Flotation Filtration Sink Float XRF and XRD analysis Residual water/Water collected Atomic Absorption Spectrometry Ca2+ ion concentration analyzed Recirculating process water

US5261539A

Flotation tests show that the recoveries of limonite and calcite are close to 95% within the pH range of 7.5–10.0 using 3 × 10 −4 mol/L sodium oleate as collector. However, the flotation of limonite was depressed by calcium ions generated from the dissolution of calcite in the flotation of a mixture of limonite and calcite.

Selective Flotation of Cassiterite from Calcite with ...

Dec 01, 2020· Thus, the purpose of this study is to identify if carboxymethyl chitosan could be used as a selective depressant in apatite flotation to depress calcite. Micro-flotation experiments, Contact Angle measurements, Total Organic Carbon test, Zeta potential, Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS ...

Calcite Processing by Flotation for Beneficiation

Jul 01, 2020· The mineral samples of fluorite and calcite were ground to −2 μm. 1.0 g of the mineral sample was added to 40 mL flotation cell, and the pH was adjusted to about 8.5 like in the flotation test. Then, the depressant and the collector were …

(PDF) FUNDAMENTAL STUDY OF THE MONAZITE

The pH metallurgical balance of the best test using was reduced from its natural value, 8.3, to the route calcite flotation followed by 6.0 due to carbon dioxide addition. The apatite flotation, test T3, is illustrated in collector dosage was set at 120 g/t.